diff --git a/requirements.txt b/requirements.txt
index 77f0424..bf8ea93 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 asn1crypto==0.24.0
 certifi==2019.9.11
 cffi==1.12.3
-cryptography==2.7
+cryptography==3.2
 future==0.17.1
 pycparser==2.19
 python-telegram-bot==12.1.1